/*
 * Copyright (C) 2013 Square, Inc.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package com.squareup.picasso;

/**
 * Callback
 *
 * @since 2021-XX-XX
 */
public interface Callback {
    /**
     * onSuccess
     */
    void onSuccess();

    /**
     * onError
     *
     * @param e exception
     */
    void onError(Exception e);

    class EmptyCallback implements Callback {
        @Override public void onSuccess() { }

        /**
         * onError
         *
         * @param e exception
         */
        @Override public void onError(Exception e) { }
    }
}